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[Xen-bugs] [Bug 1267] New: if vtd is enabled, creating guest will cause

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Subject:	[Xen-bugs] [Bug 1267] New: if vtd is enabled, creating guest will cause dom0 hang
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Date:	Wed, 28 May 2008 23:54:06 -0700
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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1267

           Summary: if vtd is enabled, creating guest will cause dom0 hang
           Product: Xen
           Version: unstable
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: blocker
          Priority: P1
         Component: Hypervisor
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: haicheng.li@xxxxxxxxx


on both 32pae and 32e, if vtd is enabled, when we create guest (even without
vtd assignment), domain0 hangs immediately, no error printed to serial port. 

If set iommu=0 in grub, we can create guest successfully.

Reproduce steps:
----------------
1) install c/s 17748 on stoakley machine
2) reboot machine to domain0
3) prepare one guest image file
4) create guest


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